320040206303 has 2 divisors, whose sum is σ = 320040206304. Its totient is φ = 320040206302.

The previous prime is 320040206287. The next prime is 320040206309. The reversal of 320040206303 is 303602040023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320040206303 - 2⁴ = 320040206287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320040206309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160020103151 + 160020103152.

It is an arithmetic number, because the mean of its divisors is an integer number (160020103152).

Almost surely, 2^320040206303 is an apocalyptic number.

320040206303 is a deficient number, since it is larger than the sum of its proper divisors (1).

320040206303 is an equidigital number, since it uses as much as digits as its factorization.

320040206303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 320040206303 its reverse (303602040023), we get a palindrome (623642246326).

The spelling of 320040206303 in words is "three hundred twenty billion, forty million, two hundred six thousand, three hundred three".